A vindication of the real reformation-principles of the Church of Scotland concerning separation, &c : In which the essay on separation is vindicated; and the arguments of the Reverend Mr. Wilson, for separation from this established church, in his defence, are considered, where sundry anti-reformation principles, historical errors, &c. in that defence, are noticed; and many things, neither truth, nor matter of fact in the testimony of the seceding brethren, are discovered and collected. To which, in an appendix, a further argument against separation, taken from the conduct of the famous martyr Mr. James Guthrie, and other protesters in his day, is largely insisted on. By the Author of The essay on separation.